I as im sure the rest of you all are am terribly excited about Gencon and the release of Rogue Trader i already have quite a bit of gelt put back to purchase said booklet. but unfortunately due to the timing of my Rogue crew i may only attend on the 16th the last day will the FFG team be there and will they be sure to have books that day as well?

Well, the last announcement I remember reading said they'd be there, but not on what days, or how many copies they'd have.

If you are only going on the last day, I wouldn't expect any copies left.